Hydrostatic pressure effect on T-c of new BiS2-based Bi4O4S3 and NdO0.5F0.5BiS2 layered superconductors
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Hydrostatic pressure effect on T-c of new BiS2-based Bi4O4S3 and NdO0.5F0.5BiS2 layered superconductors
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| Creator |
Selvan, G. Kala
Kanagaraj, M. Muthu, S. Esakki Jha, Rajveer Awana, V. P. S. Arumugam, S. |
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| Subject |
Materials Science
Applied Physics/Condensed Matter |
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| Description |
We investigate the external hydrostatic pressure effect on the superconducting transition temperature (T-c) of new layered superconductors Bi4O4S3 and NdO0.5F0.5BiS2. Though the T-c is found to have a moderate decrease from 4.8 K to 4.3 K (dT(c)(onset)/dP = -0.28 K/GPa) for Bi4O4S3 superconductor, the same increases from 4.6 K to 5 K (dT(c)(onset)/dP = 0.44 K/GPa) up to 1.31 GPa followed by a sudden decrease from 5 K to 4.7 K up to 1.75 GPa for NdO0.5F0.5BiS2 superconductor. The variation of T-c in these systems may be correlated to an increase or decrease of the charge carriers in the density of states under externally applied pressure.
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| Publisher |
Wiley-VCH Verlag
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| Date |
2013-07
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3186/1/Hydrostatic%20pressure%20effect.pdf
Selvan, G. Kala and Kanagaraj, M. and Muthu, S. Esakki and Jha, Rajveer and Awana, V. P. S. and Arumugam, S. (2013) Hydrostatic pressure effect on T-c of new BiS2-based Bi4O4S3 and NdO0.5F0.5BiS2 layered superconductors. Physica status solidi (RRL) - Rapid Research Letters, 7 (7). pp. 510-513. ISSN 1862-6254 |
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| Relation |
http://npl.csircentral.net/3186/
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